... Plate Heat Exchanger, Dual Wall Heat Exchanger, CE, UL, TUV,ISO9001:2000 Technical parameterProduct nameDouble Wall Brazed Plate Heat Exchanger, Double Wall Plate Heat Exchanger, Dual Wall Heat Exchanger,CE ... Condition Salt Spray Tester Benyangdacheng 1 1.0 Acceptable Heat Exchanger Bursting Machine HPB-25-L 1 4.0 Acceptable Oil Pressure Life ...